Birth registration for Robert Edward Johnston, Oct. 16, 1910, Shadeland District, Manitoba, Canada. Manitoba Vital Statistics Reg No. 1910,22620566.
"Recensement du Canada de 1911," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:27F9-3G6 : 16 March 2018), Adelaide Johnston in entry for William Johnston, 1911; citing Census, Lisgar Sub-Districts 1-33, Manitoba, Canada, Library and Archives of Canada, Ottawa, Ontario; FHL microfilm 2,417,666.